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Re: [PATCH] net: vrf: avoid gcc-4.6 warning

From David Miller <davem@davemloft.net>
Newsgroups linux.kernel
Subject Re: [PATCH] net: vrf: avoid gcc-4.6 warning
Date 2017-09-15 23:30 +0200
Message-ID <uq6lr-8D-17@gated-at.bofh.it> (permalink)
References <uoZP4-5Ys-9@gated-at.bofh.it>
Organization linux.* mail to news gateway

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From: Arnd Bergmann <arnd@arndb.de>
Date: Tue, 12 Sep 2017 22:10:53 +0200

> When building an allmodconfig kernel with gcc-4.6, we get a rather
> odd warning:
> 
> drivers/net/vrf.c: In function ‘vrf_ip6_input_dst’:
> drivers/net/vrf.c:964:3: error: initialized field with side-effects overwritten [-Werror]
> drivers/net/vrf.c:964:3: error: (near initialization for ‘fl6’) [-Werror]
> 
> I have no idea what this warning is even trying to say, but it does
> seem like a false positive. Reordering the initialization in to match
> the structure definition gets rid of the warning, and might also avoid
> whatever gcc thinks is wrong here.
> 
> Fixes: 9ff74384600a ("net: vrf: Handle ipv6 multicast and link-local addresses")
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>

That's extremely weird, I can't explain it either.

Oh well, applied, thanks.

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[PATCH] net: vrf: avoid gcc-4.6 warning Arnd Bergmann <arnd@arndb.de> - 2017-09-12 22:20 +0200
  Re: [PATCH] net: vrf: avoid gcc-4.6 warning David Miller <davem@davemloft.net> - 2017-09-15 23:30 +0200

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